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US 7,084,096 B2Granted
Suspension of borates in non-aqueous solvents and use thereof
AssigneeBenchmark Research and Technology, Inc.
InventorsWilliam Franklin Harris, Jr., David Nigel Harry, Xiaoping Qiu
Life of this patent
Estimating the term…
Abstract
A non-aqueous suspension including boron-containing particulates, a low molecular weight polyalkylene glycol and a suspension stabilizer is provided. Methods of crosslinking water soluble polymers and of fracturing a subterranean formation are also provided.
Claims71
A non-aqueous suspension comprising:
- (a) boron-containing particulates;
- (b) low molecular weight polyalkylene glycol;
- and
- (c) a suspension stabilizer comprising an hydrogenated castor oil or wax;
- wherein the boron-containing particulates are selected from the group consisting of alkaline metal borates, boric acid, and mixtures thereof.
2 more elements
A non-aqueous suspension comprising:
- (a) boron-containing particulates;
- (b) low molecular weight polyalkylene glycol;
- (c) a suspension stabilizer comprising an hydrogenated castor oil or wax;
- and
- (d) a thickener for the polyalkylene glycol;
- wherein the boron-containing particulates are selected from the group consisting of alkaline metal borates, boric acid, and mixtures thereof.
3 more elements
A crosslinked hydraulic fracturing fluid comprising:
- (a) a water-soluble polymer;
- and
- (b) a non-aqueous boron crosslinker suspension comprising:
- (i) boron-containing particulates;
- (ii) a low molecular weight polyalkylene glycol, and
- (iii) a suspension stabilizer comprising a hydrogenated castor oil or wax;
- wherein the polymer is crosslinked with the non-aqueous boron crosslinker.
4 more elements
A crosslinked hydraulic fracturing fluid comprising:
- (a) a water-soluble polymer;
- (b) a non-aqueous boron crosslinker suspension comprising:
- (i) boron-containing particulates;
- (ii) a low molecular weight polyalkylene glycol, and
- (iii) a suspension stabilizer comprising a hydrogenated castor oil or wax;
- and
- (c) water;
- wherein the polymer is crosslinked with the non-aqueous boron crosslinker.
5 more elements
A crosslinked hydraulic fracturing fluid comprising:
- (a) a water-soluble polymer;
- (b) a non-aqueous boron crosslinker suspension comprising:
- (i) boron-containing particulates;
- (ii) a low molecular weight polyalkylene glycol,
- (iii) a suspension stabilizer comprising a hydrogenated castor oil or wax;
- and
- (iv) a thickener for the polyalkylene glycol;
- and
- (c) water;
- wherein the polymer is crosslinked with the non-aqueous boron crosslinker.
7 more elements
A non-aqueous boron crosslinker suspension comprising:
- (a) between about 30 weight percent and about 50 weight percent solid particles of an alkaline metal borate, boric acid, or mixtures thereof;
- (b) between about 48 weight percent and about 70 weight percent low molecular weight polyethylene glycol;
- and
- (c) between about 0.5 weight percent and about 2 weight percent hydrogenated castor wax.
1 more element
A method of crosslinking one or more water soluble polymers comprising:
- adding to a hydrated or colloidal dispersion of one or more water soluble polymers an effective crosslinking amount of a non-aqueous boron crosslinker comprising:
- (a) boron-containing particulates;
- (b) low molecular weight polyalkylene glycol;
- and
- (c) a suspension stabilizer comprising an hydrogenated castor oil or wax.
2 more elements
A method of crosslinking one or more water soluble polymers comprising:
- adding to a hydrated or colloidal dispersion of one or more water soluble polymers an effective crosslinking amount of a non-aqueous boron crosslinker comprising:
- (a) boron-containing particulates;
- (b) low molecular weight polyalkylene glycol;
- (c) a suspension stabilizer comprising an hydrogenated castor oil or wax;
- and
- (d) a thickener for the polyalkylene glycol.
3 more elements
A method of fracturing a subterranean formation comprising:
- (1) forming a hydraulic fracturing fluid comprising:
- (a) water
- (b) a water soluble polymer, and
- (c) a non-aqueous boron crosslinker suspension comprising:
- (i) boron-containing particulates;
- (ii) low molecular weight polyalkylene glycol;
- and
- (iii) a suspension stabilizer comprising an hydrogenated castor oil or wax, and
- (2) pumping said fracturing fluid via tubing or casing into a subterranean formation with sufficient force to initiate a fracture.
6 more elements
A method of fracturing a subterranean formation comprising:
- (1) forming a hydraulic fracturing fluid comprising:
- (a) water;
- (b) a water soluble polymer, and
- (c) a boron crosslinker suspension comprising:
- (i) boron-containing particulates;
- (ii) low molecular weight polyalkylene glycol;
- (iii) a suspension stabilizer comprising an hydrogenated castor oil or wax;
- and
- (iv) water;
- and
- (2) pumping said fracturing fluid via tubing or casing into a subterranean formation with sufficient force to initiate a fracture.
8 more elements
A method of fracturing a subterranean formation comprising:
- (1) forming a hydraulic fracturing fluid comprising:
- (a) water
- (b) a water soluble polymer, and
- (c) a boron crosslinker suspension comprising:
- (i) boron-containing particulates;
- (ii) low molecular weight polyalkylene glycol;
- (iii) a suspension stabilizer comprising an hydrogenated castor oil or wax;
- (iv) a thickener for the polyalkylene glycol;
- and
- (v) water;
- and
- (2) pumping said fracturing fluid via tubing or casing into a subterranean formation with sufficient force to initiate a fracture.
9 more elements
Dependencies are inferred from the claim text.